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nd pools. But cleansing his feathers as often as he would, he could not change their color, while through want of food he perished. Change of habit cannot alter Nature. 烏鴉非常羨慕天鵝潔白的羽毛。他天天洗刷自己的羽毛,不但一 點(diǎn)都沒洗白,反而因缺少食物饑餓而死。“哈哈”他說“那是我的”。 A Tough Teacher A school teacher friend of mine in juried his back and had to wear a plaster cast around the upper part of his body. On his first day of the term, still with the cast under his shirt, he was assigned to teach the most undisciplined class. Stepping confidently into the rowdy classroom, he opened the window as wide as possible. Just then, a strong breeze made his tie flap. Trying to fix the tie, he took a blackboard eraser and hammered a large tack through his tie into his chest